W90210F Winbond Electronics Corp America, W90210F Datasheet - Page 39

• Manufacturer Part Number: W90210F
• Description: Pa-risc Embedded Controller
• Manufacturer: Winbond Electronics Corp America

9. Timing Diagram
9.1 Memory controller
RAS3# - RAS0#
CAS3# - CAS0#
9.1.1 DRAM AC Timimg
9.1.2 ROM AC Timimg
9.1.2.1 Flash ROM Write Timimg
MD31 - MD0
MD31 - MD0
MA11 - MA0
MA19 - MA0
ROMRW#
ROMOE#
Symbol
Symbol
RCS0# -
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t rv1
t rv2
t cv1
t cv2
t wv
t ds
t dh
t av
t as
PCLK
PCLK
WE#
RAS# valid delay ref. to PCLK rising
RAS# valid delay ref. to PCLK rising
CAS# valid delay ref. to PCLK rising
RAS# valid delay ref. to PCLK rising
WE# valid delay ref. to PCLK rising
Memory data setup time
Memory data hold time
Memory address valid delay
Address setup time
t wv
t as
t rv1
t cs
Parameter
Parameter
39
t cv1
t av
t ds
t ds t dh
t wp
Min
Min
t rv2
t cv2
t dh
Max
Max
W90210F
Version 1.4, 10/8/97
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns